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2 years ago

I need help ASAP ??????,???????!!!!!!!!!

Mathematics

1 answer:

Harman [31]2 years ago

4 0

Answer: My answer would be

Step-by-step explanation:

I believe it's D. because they both match up at day 3.

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The area of a rectangle is

ANEK [815]

Area = length x width
length = 3 x width - 5

i.e. 50 = w(3w - 5)
3w^2 - 5w - 50 = 0
(3w + 10)(w - 5) = 0
w = -10/3 or w = 5
but width cannot be negative, hence
width = 5 yd
Length = 3 x 5 - 5 = 15 - 5 = 10 yd

8 0

2 years ago

Can 10 people be divided into two groups with a ratio of 1 : 2? Explain.

den301095 [7]

Let the groups be x and 2x

x+2x=10
3x=10
x=10/3

Its decimal not natual so can't be divided

3 0

1 year ago

If y= 3x + 6, what is the minimum value of (x^3)(y)?

Rainbow [258]

Answer:

Given the statement: if y =3x+6.

Find the minimum value of $(x^3)(y)$

Let f(x) = $(x^3)(y)$

Substitute the value of y ;

$f(x)=(x^3)(3x+6)$

Distribute the terms;

$f(x)= 3x^4 + 6x^3$

The derivative value of f(x) with respect to x.

$\frac{df}{dx} =\frac{d}{dx}(3x^4+6x^3)$

Using $\frac{d}{dx}(x^n) = nx^{n-1}$

we have;

$\frac{df}{dx} =(12x^3+18x^2)$

Set $\frac{df}{dx} = 0$

then;

$(12x^3+18x^2) =0$

$6x^2(2x + 3) = 0$

By zero product property;

$6x^2=0$ and 2x + 3 = 0

⇒ x=0 and x = $-\frac{3}{2} = -1.5$

then;

at x = 0

f(0) = 0

and

x = -1.5

$f(-1.5) = 3(-1.5)^4 + 6(-1.5)^3 = 15.1875-20.25 = -5.0625$

Hence the minimum value of $(x^3)(y)$ is, -5.0625

3 0

3 years ago

How old is abhasra if she was at least 46 years old five years ago

adoni [48]

Answer:

She is at least 51. She could be older.

8 0

2 years ago

Read 2 more answers

Ten kids can go to the water park for $95. How many can go if there is $200?

posledela

Answer:

only 2 kid's could go since the price of both is 95 for one and times it by two it's 190

5 0

2 years ago